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Home >> Mercedes Benz >> 2020 >> GLB250 Base >> Repair and Diagnosis >> Brakes >> Traction Control >> Brakes - Hydraulic & Mechanical System - 247 Chassis >> Testing & Repair >> Remove/Install Brake Fluid Reservoir - AR42.10-P-0308MFA

Remove/Install Brake Fluid Reservoir - AR42.10-P-0308MFA

Model 118, 177, 243, 247 

Fig 1: Brake Fluid Reservoir Components Location - Model 247
G14689014Courtesy of MERCEDES-BENZ USA
DANGER Risk of accident  when commissioning the vehicle due to a lack of braking effect when the service brake is operated for the first time after repair work. Before starting the engine, actuate brake pedal several times until pressure is built up and maintained in the brake system. AS42.50-Z-0002-01A 
CAUTION Risk of poisoning  from swallowing brake fluid. Risk of injury  from skin and eye contact with brake fluid Only pour brake fluid into suitable and appropriately marked containers. Wear protective clothing and eye protection when handling brake fluid. AS42.50-Z-0001-01A 
Topical note  Notes on repairs to brake system   AH42.00-P-0003-01A 
Topical note  Brake fluid notes   AH42.50-P-0001-01A 
  Notes on safety-relevant components   AH00.00-Z-0019-01A
REMOVINGINSTALLING Remove/install     
1 Remove master brake cylinder (2). Model 118, 177, 247 AR42.10-P-0300MFA 
    Model 243 AR42.10-P-0300EQA
2 Remove screw (3) from brake fluid reservoir (1). TORQUE SPECIFICATION Screw/bolt, reservoir to master brake cylinder *BA42.10-P-1002-05G 
3 Remove brake fluid reservoir (1) from master brake cylinder (2) and seal connections with suitable stop plugs. NOTES Collect brake fluid which runs out with an absorbent rag.
Otherwise, the paint will be damaged.
INSTALLATION IMPORTANT : Replace sealing rings between brake fluid reservoir (1) and master brake cylinder (2).
 
    SPECIAL TOOL Record plug Fig 2
4 Install in the reverse order.    
MASTER BRAKE CYLINDER

Number Designation Model 118 Model 177
BA42.10-P-1002-05G Screw/bolt, reservoir to master brake cylinder Nm 8 8
MASTER BRAKE CYLINDER

Number Designation Model 243 Model 247
BA42.10-P-1002-05G Screw/bolt, reservoir to master brake cylinder Nm 8 8
Fig 2: Identifying Record Plug (129 589 00 91 00)
G09975019Courtesy of MERCEDES-BENZ USA